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參數(shù)資料
| 型號： | MAX6875ETJ+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | EEPROM-Programmable, Hex/Quad, Power-Supply Sequencers/Supervisors |
| 中文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC32 |
| 封裝： | 7 X 7 MM, TQFN-32 |
| 文件頁數(shù)： | 7/40頁 |
| 文件大?。?/td> | 403K |
| 代理商： | MAX6875ETJ+T |
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GPI1–GPI4 (MAX6874)/GPI1–GPI3 (MAX6875)
The GPI1–GPI4 programmable logic inputs control
power-supply sequencing (programmable outputs),
reset/interrupt signaling, and watchdog functions (see
the Configuring the Watchdog Timer (Registers
3Ch–3Dh) section). Configure GPI1–GPI4 for active-low
or active-high logic (Table 5). GPI1–GPI4 internally pull
down to GND through a 10A current sink.
MR
The manual reset (MR) input initiates a reset condition.
Register 40h determines the programmable outputs that
assert while MR is low (Table 6). All affected program-
mable outputs remain asserted (see the Programmable
Outputs section) for their PO_ timeout periods after MR
releases high. An internal 10A current source pulls MR
to DBP. Leave MR unconnected or connect to DBP if
unused. A programmable output cannot depend solely
on MR.
MARGIN
MARGIN allows system-level testing while power supplies
exceed the normal ranges. Drive MARGIN low to hold the
programmable outputs in their state while system-level
testing occurs. Leave MARGIN unconnected or connect
to DBP if unused. An internal 10A current source pulls
MARGIN to DBP. The state of each programmable output
does not change while MARGIN = GND. MARGIN over-
rides MR if both assert at the same time.
Programmable Outputs
The MAX6874 features eight programmable outputs
while the MAX6875 features five programmable outputs.
Program the open-drain outputs as active-high or
active-low. During power-up, the programmable outputs
pull to GND with an internal 10A current sink for 1V <
VABP < VUVLO. The programmable outputs remain in
their active states until their respective timeout periods
(PO_) expire and all of the programmed conditions are
met for each output. Any output programmed to depend
MAX6874/MAX6875
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
______________________________________________________________________________________
15
Table 5. GPI1–GPI4 Active Logic States
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
DESCRIPTION
[0]
GPI1. 0 = active low. 1 = active high.
[1]
GPI2. 0 = active low. 1 = active high.
[2]
GPI3. 0 = active low. 1 = active high.
3Bh
803Bh
[3]
GPI4 (MAX6874 only). 0 = active low. 1 = active high.
Table 6. Programmable Output Behavior and MR
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
DESCRIPTION
[0]
PO1 (MAX6874 only). 0 = PO1 independent of MR. 1 = PO1 asserts when MR = low.
[1]
PO2 (MAX6874 only). 0 = PO2 independent of MR. 1 = PO2 asserts when MR = low.
[2]
PO3 (MAX6874)/PO1 (MAX6875). 0 = PO3/PO1 independent of MR.
1 = PO3/PO1 asserts when MR = low.
[3]
PO4 (MAX6874)/PO2 (MAX6875). 0 = PO4/PO2 independent of MR.
1 = PO4/PO2 asserts when MR = low.
[4]
PO5 (MAX6874)/PO3 (MAX6875). 0 = PO5/PO3 independent of MR.
1 = PO5/PO3 asserts when MR = low.
[5]
PO6 (MAX6874)/PO4 (MAX6875). 0 = PO6/PO4 independent of MR.
1 = PO6/PO4 asserts when MR = low.
[6]
PO7 (MAX6874)/PO5 (MAX6875). 0 = PO7/PO5 independent of MR.
1 = PO7/PO5 asserts when MR = low.
40h
8040h
[7]
PO8 (MAX6874 only). 0 = PO8 independent of MR. 1 = PO8 asserts when MR = low.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6876ETX | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6876ETX+ | 功能描述:監(jiān)控電路 EEPROM-Prog Quad Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6876ETX+T | 功能描述:監(jiān)控電路 EEPROM-Prog Quad Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6876ETX-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6876EVCMOD2 | 功能描述:監(jiān)控電路 Programmers, Development Systems RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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